Global Astronomy Month is the world’s largest annual celebration of astronomy. Whether local events or online, watching or sharing, science or art, there’s something for everyone.

Community

Community

The Astronomers Without Borders global community is at the heart of everything we do. Bringing the community together through astronomy fosters friendship, understanding, and good will. Programs and activities are made possible by the participation of AWB members.

April 30

Trillions of neutrinos from the Sun's interior pass through your body per second, whether it's day or night. The subatomic particles do you no harm; there's no risk of neutrino sunburn or even a tan. Physicists detect them at huge underground labs. #gam2018 #RandomAstroFact

April 29

Help needed! You & your home computer can sift through satellite data to find “brown dwarfs” & possibly even the suspected 9th planet of our solar system. Just surf over to http://www.BackyardWorlds.org to get more information & join the hunt. #gam2018 #RandomAstroFact

April 28

Comets are usually named for their discoverers, but not Halley's. Edmond Halley (1656-1741) figured out that the comet now named for him returns about every 76 years, confirming that comets are in closed orbits around the Sun. It'll be back in 2061. #gam2018 #RandomAstroFact

April 27

The Crab Nebula emits visible light, radio waves, X-rays & more, contains a pulsar spinning 30 times/sec & is expanding at over 900 miles/sec. It's the remains of a supernova explosion of a large star, seen with the naked eye (even in daytime) in 1054. #gam2018 #RandomAstroFact

April 26

The attached cartoon is no joke. Astronomers from the Netherlands & USA calculate that 60+ tons per year of organic (carbon-bearing molecules) shed by asteroids & comets are raining down on Mars. The Mars rover Curiosity found evidence of organics there. #gam2018 #RandomAstroFact